lab 4 ppt - LAB 4 Ex. 34 A/B and 35(A) Frog Cardiovascular...

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LAB 4 Ex. 34 A/B and 35(A) Frog Cardiovascular Physiology and the Lymphatic System
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1. pp. 511-520 Read & Know All bold terms 2. pp. 521-524 Do Review sheet 1. PEx-97-103 Do Entire simulation. 2. PEx-105-107 Do Review sheet EXERCISE 34A: Frog Cardiovascular Physiology: Wet Lab EXERCISE 34B: Frog Cardiovascular Physiology: Computer Simulation (Computer Simulations located after p. 702)
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1. pp. 525-532 Read & Know all bold terms 2. p. 526 Fig. 35A.1a Fig. 35A.1b, c Know Know Types of vessels Lymphatic scheme 3. p. 527 Fig. 35A.2 Know Spleen and tonsils on torso model 4. p. 528 Fig. 35A.3a, b Know Know Structure of the lymph node on microscope slide Lymph nodes on A.D.A.M. 5. p. 529 Fig. 35A.4a, b Omit 6. p. 530 Fig. 35A.5a, b Know Structure of antibody molecule 6. p. 531 Fig. 35A.6 Omit Ouchterlony Technique 7. pp. 533-536 Do Review sheet EXERCISE 35A: The Lymphatic System and Immune Response
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Exercise 34A Frog Cardiovascular Physiology: Wet Lab pp 511-520
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Frog Cardiovascular Physiology: Wet Lab (Exercise 34A) - read Computer Simulation (Exercise 34B) Membrane potential and action potential review Characteristics of Excitable Tissues: membranes have Na+ and K+ ATPase pumps (NA-K pumps) that requires energy (ATP) to move ions across membrane against the concentration gradient Na+ and K+ slowly diffusion across cell membrane (from high to low concentration) Higher negative (-) charge inside cell at resting potential, membranes are more permeable to K+
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Special Electrical Properties of Cardiac Muscle: Automaticity and Rhythmicity pg 512 Automaticity spontaneous depolarization of the heart muscle without external stimulation (based on plasma membrane permeability to K+ and Na+) Rhythmicity regular and continuous depolarization-repolarization of the heart muscle Sinus Venosus (frog) Homologous to the human SA node
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Baseline Frog Heart Activity pp 513-518 Intrinsic Controls Nodal System Inherent ability to contract (slower) Extrinsic Controls Autonomic Nervous System Chemicals Hormones Ions Metabolites Extrasystoles Extra beat that can be seen on the QRS wave or ventricular contraction Compensatory Pause Follows an extrasystole to get the heart back on track (A frog’s heart consists of 2 atria and 1 incompletely divided ventricle)
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Baseline Frog Heart Activity pp 513-518 Extrensic Chemical Controls Pilocarpine (Parasympathomimetic drug) Stimulates parasympathetic nerve (vagal) by increasing Ach release; decreases HR Atropine Sulfate
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This note was uploaded on 02/01/2011 for the course BIOL 228 taught by Professor Marilynkoob during the Fall '10 term at Boise State.

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lab 4 ppt - LAB 4 Ex. 34 A/B and 35(A) Frog Cardiovascular...

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